diff options
| author | Sylwester Nawrocki <s.nawrocki@samsung.com> | 2016-11-10 18:17:51 +0300 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2016-11-17 13:21:28 +0300 |
| commit | 6f8dc9d481759b428a8cb6a17b83821451415ba9 (patch) | |
| tree | a17391c4fe8c602601c0112085510b8e76cb3bbb /drivers/spi/spi-s3c64xx.c | |
| parent | 5d13982a246ce49200c59f65902f047e7633ae65 (diff) | |
| download | linux-6f8dc9d481759b428a8cb6a17b83821451415ba9.tar.xz | |
spi: s3c64xx: Do not use platform_data for DMA parameters
All related platforms use either devicetree or the DMA slave
map API for mapping DMA channels to DMA slaves so we can now
stop using platform_data for passing DMA details.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Tested-by: Andi Shyti <andi.shyti@samsung.com>
Tested-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/spi/spi-s3c64xx.c')
| -rw-r--r-- | drivers/spi/spi-s3c64xx.c | 21 |
1 files changed, 4 insertions, 17 deletions
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index 3c09e94cf827..28dfdce4beae 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -341,27 +341,20 @@ static void s3c64xx_spi_set_cs(struct spi_device *spi, bool enable) static int s3c64xx_spi_prepare_transfer(struct spi_master *spi) { struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(spi); - dma_filter_fn filter = sdd->cntrlr_info->filter; struct device *dev = &sdd->pdev->dev; - dma_cap_mask_t mask; if (is_polling(sdd)) return 0; - dma_cap_zero(mask); - dma_cap_set(DMA_SLAVE, mask); - /* Acquire DMA channels */ - sdd->rx_dma.ch = dma_request_slave_channel_compat(mask, filter, - sdd->cntrlr_info->dma_rx, dev, "rx"); + sdd->rx_dma.ch = dma_request_slave_channel(dev, "rx"); if (!sdd->rx_dma.ch) { dev_err(dev, "Failed to get RX DMA channel\n"); return -EBUSY; } spi->dma_rx = sdd->rx_dma.ch; - sdd->tx_dma.ch = dma_request_slave_channel_compat(mask, filter, - sdd->cntrlr_info->dma_tx, dev, "tx"); + sdd->tx_dma.ch = dma_request_slave_channel(dev, "tx"); if (!sdd->tx_dma.ch) { dev_err(dev, "Failed to get TX DMA channel\n"); dma_release_channel(sdd->rx_dma.ch); @@ -1091,11 +1084,6 @@ static int s3c64xx_spi_probe(struct platform_device *pdev) sdd->cur_bpw = 8; - if (!sdd->pdev->dev.of_node && (!sci->dma_tx || !sci->dma_rx)) { - dev_warn(&pdev->dev, "Unable to get SPI tx/rx DMA data. Switching to poll mode\n"); - sdd->port_conf->quirks = S3C64XX_SPI_QUIRK_POLL; - } - sdd->tx_dma.direction = DMA_MEM_TO_DEV; sdd->rx_dma.direction = DMA_DEV_TO_MEM; @@ -1205,9 +1193,8 @@ static int s3c64xx_spi_probe(struct platform_device *pdev) dev_dbg(&pdev->dev, "Samsung SoC SPI Driver loaded for Bus SPI-%d with %d Slaves attached\n", sdd->port_id, master->num_chipselect); - dev_dbg(&pdev->dev, "\tIOmem=[%pR]\tFIFO %dbytes\tDMA=[Rx-%p, Tx-%p]\n", - mem_res, (FIFO_LVL_MASK(sdd) >> 1) + 1, - sci->dma_rx, sci->dma_tx); + dev_dbg(&pdev->dev, "\tIOmem=[%pR]\tFIFO %dbytes\n", + mem_res, (FIFO_LVL_MASK(sdd) >> 1) + 1); pm_runtime_mark_last_busy(&pdev->dev); pm_runtime_put_autosuspend(&pdev->dev); |